Vacuum storage box

ABSTRACT

The present invention provides a storage box, which comprises a box body and a vacuum pumping component capable of being fixed on the box body. The box body is provided with a vacuum pumping channel. The vacuum pumping component is detachably connected with the vacuum pumping channel. When the vacuum pumping component is connected to the vacuum pumping channel, if the air pressure of an inner cavity of the box body is greater than the threshold, gas in the inner cavity of the box body will be pumped to allow the inner cavity of the box body to maintain the vacuum state. During the daily use of consumers, a plurality of box bodies and a vacuum pumping component may be prepared. When store items of a specific box body need to be stored for a long time, the vacuum pumping component is fixed on the box body.

FIELD OF THE INVENTION

The present invention relates to the technical field of storage boxes, in particular to a vacuum storage box.

BACKGROUND OF THE INVENTION

In order to store food and other perishable items, more and more storage containers adopt vacuuming means to prolong the oxidative deterioration process of items so as to achieve the objective of freshness.

Currently, there are mainly two means for the vacuum pumping of the storage containers. One is as follows: a vacuum unit and a container are separated; in the use process, an air pump leans against a vacuum valve on the container for vacuum pumping; and after the vacuum pumping process is completed, the air pump is separated from the vacuum valve. The means adopts one air pump for the vacuum pumping of a plurality of containers, so that the cost is low. But three are also some defects: (1) as daily-use vacuum vessels are not highly precise vessels and have limited sealing performance, the degree of vacuum will be inevitably gradually reduced in the storage process, and long-term storage cannot be achieved unless the vessels are regularly vacuumized by consumers; and (2) as the air pump is separated from the vessel and only needs to be used in the vacuum pumping process, the air pump tends to be randomly placed after use and hence is lost and is not conducive for later use. The other means is that the air pump and the vessel are integrally designed. For instance, in a fully automatic vacuum storage box with Chinese Patent No. CN 201320356032.6, an air pump is disposed on a box cover and configured to monitor the air pressure in a box body in real time; and when the degree of vacuum in the box body is less than the threshold, the vacuum pumping operation is started to maintain the degree of vacuum in the box body. Although the means can prolong the preservation time, an air pump is fixed on a box body and can only vacuumize the box body matched therewith, so that the utilization rate of the air pump is very low. Moreover, the air pump is a relatively expensive device, so the replacement of beneficial storage containers by similar vessels is unrealistic and wasteful as for consumers.

Therefore, it is particularly important to provide a vacuum storage box capable of effectively improving the utilization rate of air pumps and overcoming the defects of the above two technical proposals.

SUMMARY OF THE INVENTION

The objective of the present invention is to overcome the defects in the prior art and provide a vacuum storage box in which consumers can reasonably use an air pump to vacuumize the storage box, so that not only the efficiency of the air pump can be improved but also the consumer demand for long-term item storage can be satisfied.

The concept of the present invention: the inventor found that different items have different requirements on the degree of vacuum and different storage times in the daily life. For instance, as for a storage box for storing food, the box may be required to be turned on to process the food in the box after one-day storage and the food is stored after secondary vacuum pumping. Some items may be storage for a long time and the boxes will not be turned on. As for items stored for a short time or having low requirement on the degree of vacuum, as the time is short, the variation of the degree of vacuum is very small during the storage. As for the storage boxes of this type, the vacuum pumping operation is only required when items are placed, and the air pump is not required to be fixed on the box body to monitor the degree of vacuum in the box body in real time. As for long-term store items, although the air pump must be fixed on the box body for vacuum pumping when the degree of vacuum in the box body is reduced to be less than the threshold, actually, due to very slow gas leakage process, the air pump will be generally switched on for vacuum pumping after a long time. Therefore, the inventor thinks that: in the process of processing short-time store items, an air pump of a storage box for long-term item storage may be temporarily used for vacuum pumping and placed on the box body for long-term item storage after the vacuum pumping process is completed, and hence the long-term stability of the degree of vacuum of the box body can be guaranteed. Therefore, the utilization rate of the air pumps can be effectively improved, and long-term store items can be also stored well. Of course, in order to achieve the above objective, the technical means of the conventional two technical proposals must be integrated.

The objective of the present invention is achieved by the following technical proposal:

the present invention provides a vacuum box body, which comprises at least one box body and a vacuum pumping component capable of being fixed on the box body, wherein the box body is provided with a vacuum pumping channel; the vacuum pumping component is detachably connected to the vacuum pumping channel; when the vacuum pumping component is connected to the vacuum pumping channel, if the air pressure of an inner cavity of the box body is greater than the threshold, the vacuum pumping component will pump gas in the inner cavity of the box body to allow the inner cavity of the box body to maintain the vacuum state; and when the vacuum pumping component is separated from the vacuum pumping channel, the connection between the inner cavity of the box body and the outside is hindered by the vacuum pumping channel to allow the inner cavity of the box body to maintain the vacuum state.

Wherein, an outer wall of the box body is provided with an accommodating groove; and the vacuum pumping component can be fixed into the accommodating groove.

Wherein, the vacuum pumping channel is disposed at the bottom of the accommodating groove; and an exhaust nozzle matched with the vacuum pumping channel is disposed on a bottom surface of the vacuum pumping component.

Wherein, the box body includes a body and a cover; and the accommodating groove is disposed on the cover.

Preferably, the vacuum pumping component is provided with a pressure detector which is configured to detect the air pressure of the inner cavity of the box body via the vacuum pumping channel.

Moreover, preferably, the box body is provided with a pressure detector; and when the vacuum pumping component is connected to the vacuum pumping channel, the pressure detector is electrically connected with the vacuum pumping component and configured to trigger the vacuum pumping component when the air pressure of the inner cavity of the box body is greater than the threshold.

Wherein, the vacuum pumping channel is provided with a through hole for running through the box body and a one-way valve is disposed in the through hole and turned on during the vacuum pumping of the vacuum pumping component.

Wherein, a pressure relief rod is also disposed in the through hole; and an intake passage is formed by the through hole when the pressure relief rod is tilted and oscillated.

The advantages of the present invention: the present invention provides a storage box, which comprises a box body and a vacuum pumping component capable of being fixed on the box body. The box body is provided with a vacuum pumping channel. The vacuum pumping component is detachably connected with the vacuum pumping channel. When the vacuum pumping component is connected to the vacuum pumping channel, if the air pressure of an inner cavity of the box body is greater than the threshold, gas in the inner cavity of the box body will be pumped to allow the inner cavity of the box body to maintain the vacuum state. When the vacuum pumping component is separated from the vacuum pumping channel, the connection between the inner cavity of the box body and the outside is hindered by the vacuum pumping channel to allow the inner cavity of the box body to maintain the vacuum state. During the daily use of consumers, a plurality of box bodies and a vacuum pumping component may be prepared. When store items of a specific box body need to be stored for a long time, the vacuum pumping component is fixed on the box body. Thus, when the air pressure of the inner cavity of the box body is greater than the threshold, the vacuum pumping component will pump gas in the inner cavity of the box body to allow the inner cavity of the box body to maintain the vacuum state. When store items of a specific box body need to be stored for a short time, the vacuum pumping component is taken from the box body for long-term item storage and used for the vacuum pumping of the inner cavity of the box body after the items are placed well and may be continuously placed on the box body for long-term item storage after the vacuum pumping process is completed. Therefore, the vacuum pumping component can be more fully utilized and the consumer demand for long-term item storage can be also satisfied.

BRIEF DESCRIPTION OF THE DRAWINGS

Further description will be given to the present invention with reference to the accompanying drawings. But the present invention is not limited by the embodiments in the accompanying drawings. Other accompanying drawings may be also obtained by those skilled in the art without creative labor according to the following drawings.

FIG. 1 is a schematic structural view of a vacuum storage box provided by the present invention; and

FIG. 2 is a schematic structural sectional view of a cover of the vacuum storage box provided by the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

Further description will be given to the present invention with reference to the following embodiments.

Embodiment 1

The present invention relates to a vacuum storage box, which, as illustrated in FIGS. 1 and 2, comprises a box body and a vacuum pumping component 3 capable of being fixed on the box body. The box body includes a body 1 and a cover 2; an outer wall is provided with an accommodating groove 21; the vacuum pumping component 3 can be fixed in the accommodating groove 21; a vacuum pumping channel is disposed at the bottom of the accommodating groove 21; an exhaust nozzle matched with the vacuum pumping channel is disposed on a bottom surface of the vacuum pumping component 3; and the vacuum pumping component 3 is provided with a pressure detector which is configured to detect the air pressure of the inner cavity of the box body via the vacuum pumping channel. When the vacuum pumping component 3 is connected to the vacuum pumping channel, if the air pressure of the inner cavity of the box body is greater than the threshold, the vacuum pumping component 3 will pump gas in the inner cavity of the box body to allow the inner cavity of the box body to maintain the vacuum state. When the vacuum pumping component 3 is separated from the vacuum pumping channel, the connection between the inner cavity of the box body and the outside is hindered by the vacuum pumping channel to allow the inner cavity of the box body to maintain the vacuum state.

During the daily use of consumers, a plurality of box bodies and a vacuum pumping component 3 may be prepared. When store items of a specific box body need to be stored for a long time, the vacuum pumping component 3 is fixed on the box body. Thus, when the air pressure of the inner cavity of the box body is greater than the threshold, the vacuum pumping component 3 will pump gas in the inner cavity of the box body to allow the inner cavity of the box body to maintain the vacuum state. When store items of a specific box body need to be stored for a short time, the vacuum pumping component 3 is taken from the box body for long-term item storage and used for the vacuum pumping of the inner cavity of the box body after the items are placed well and may be continuously placed on the box body for long-term item storage after the vacuum pumping process is completed. Therefore, the vacuum pumping component 3 can be more fully utilized and the consumer demand for long-term item storage can be also satisfied. Moreover, as the vacuum pumping component 3 is fixed on a specific box body, the vacuum pumping component 3 will not be randomly placed and hence cannot be easily lost.

It should be noted that the accommodating groove 21 may also be not formed on the cover 2, for instance, may also be formed on the body 1, which can be specifically flexibly adjusted according to the application requirements of products. The accommodating groove may be even not provided as long as the vacuum pumping component 3 is fixed on the box body.

Moreover, in the embodiment, the vacuum pumping channel is provided with a through hole for running through the box body; and a one-way valve 4 is disposed in the through hole and turned on during the vacuum pumping of the vacuum pumping component 3; a pressure relief rod 5 is also disposed in the through hole; and an intake passage is formed by the through hole when the pressure relief rod 5 is tilted and oscillated. More specifically, the structure of the vacuum pumping channel of the conventional separated vacuum box can be referred.

Embodiment 2

In a preferred embodiment 2 of the vacuum storage box provided by the present invention, the main technical proposal of the embodiment is the same with that of the embodiment 1. Features not explained in the embodiment adopt the explanation in the embodiment 1, so no further description will be given here. The difference between the embodiment and the embodiment 1 is that the box body is provided with a pressure detector. When the vacuum pumping component 3 is connected to the vacuum pumping channel, the pressure detector is electrically connected with the vacuum pumping component 3 and configured to trigger the vacuum pumping component 3 when the air pressure of the inner cavity of the box body is greater than the threshold. Considering the overall cost of products and other reasons, the conventional pressure detector will generally not adopt a small-size and high-precision pressure sensor for detection but adopt a spring or a spring plate for detection. Under the condition, if the proposal of the embodiment 1, in which the vacuum pumping component 3 is provided with the pressure detector which is configured to detect the air pressure in the inner cavity of the box body via the vacuum pumping channel, is adopted, not only the objective cannot be achieved structurally but also the detection accuracy can be greatly reduced. Thus, the pressure detector and the box body are integrally designed and the pressure detector is configured to trigger the vacuum pumping component 3 via electrical signals. Therefore, the manufacturing difficulty can be reduced and the detection accuracy can be improved.

It should be finally noted that the above embodiments are only intended to illustrate the technical proposals of the present invention and not intended to limit the scope of protection of the present invention. Although detailed description has been given to the present invention with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent replacements may be made to the technical proposals of the present invention without departing from the essence and scope of the technical proposals of the present invention. 

What is claimed is:
 1. A vacuum storage box, comprising at least one box body and a vacuum pumping component capable of being fixed on the box body, wherein the box body is provided with a vacuum pumping channel; the vacuum pumping component is detachably connected to the vacuum pumping channel; when the vacuum pumping component is connected to the vacuum pumping channel, if the air pressure of an inner cavity of the box body is greater than the threshold, the vacuum pumping component will pump gas in the inner cavity of the box body to allow the inner cavity of the box body to maintain the vacuum state; and when the vacuum pumping component is separated from the vacuum pumping channel, the connection between the inner cavity of the box body and the outside is hindered by the vacuum pumping channel to allow the inner cavity of the box body to maintain the vacuum state.
 2. The vacuum storage box according to claim 1, wherein an outer wall of the box body is provided with an accommodating groove; and the vacuum pumping component can be fixed into the accommodating groove.
 3. The vacuum storage box according to claim 2, wherein the vacuum pumping channel is disposed at the bottom of the accommodating groove; and an exhaust nozzle matched with the vacuum pumping channel is disposed on a bottom surface of the vacuum pumping component.
 4. The vacuum storage box according to claim 2, wherein the box body includes a body and a cover; and the accommodating groove is disposed on the cover.
 5. The vacuum storage box according to claim 1, wherein the vacuum pumping component is provided with a pressure detector which is configured to detect the air pressure of the inner cavity of the box body via the vacuum pumping channel.
 6. The vacuum storage box according to claim 5, wherein the box body is provided with a pressure detector; and when the vacuum pumping component is connected to the vacuum pumping channel, the pressure detector is electrically connected with the vacuum pumping component and configured to trigger the vacuum pumping component when the air pressure of the inner cavity of the box body is greater than the threshold.
 7. The vacuum storage box according to claim 1, wherein the vacuum pumping channel is provided with a through hole for running through the box body; and a one-way valve is disposed in the through hole and turned on during the vacuum pumping of the vacuum pumping component.
 8. The vacuum storage box according to claim 7, wherein a pressure relief rod is also disposed in the through hole; and an intake passage is formed by the through hole when the pressure relief rod is tilted and oscillated. 